:Quick disclaimer. This is going to be a long, probably multi part story of my forbidden affair, with a long build up just as it happened. I would like to apologize for any gramar and editing errors, english is not my native tongue but I will do my best. All characters are over the age of 18. All comments are welcommed, good and bad. Since this is my first story I would very much appreciate all feedback I can get. Thanks!:
My sister was such a tease. She is almost 5 years older then me and she is quite small, standing at 5ft1in with shoulder lenght blonde hair, amazingly firm, not at all saggy boobs in size 36C, so a good handfull. She is not fat but she has amazingly strong legs from training dancing all her life, mainly hip-hop. She has nice green eyes, the sort of eyes you can just get lost in them. For the sake of this story, we will call her Espella. I am 6ft3in so quite a bit taller then her, at around 220lbs with a sporty physique.
It was not weird for my sister to walk around in our flat just in her thongs and a bra, or maybe a tight shirt over it. And since we were living with our mother in a small, 2 bedroom appartment after our parents divorced, I got to see her quite a bit. And believe me, this made me a proper filthy, horny teenager. I would always try to steal glances at her cleveage, her nice, round, firm butt and from time to time I would sniff her panties. Sometimes I would even leave the dirty in her fresh panties and it was such a turn on seeing her the next day wearing them.
Since we were living in such a small appartment, me and my sister shared a room, which was quite fun for me at times. We didn't had the best relationship but that didn't stop me from perving on her almost every chance I got. As she was older, she could stay out with her friends longer then me and at first, I would just lay in my bed, on my side waiting for her to come home. When she did, I did my best to play as if I'm sleeping. So when she got used to me "sleeping" she would give me a show without her realizing, or did she? At first, I would just watch her get undressed, sneak a peak of her boobies, maybe her ass, as she took down her pants, and she always wore thongs, nice black lacy ones, which was definitely a plus. So as time passed on, I started to get used to that also and I got braver so I lay in my bed flat on my back, without any underwear, just a thin sheet over my body and over my fully erect cock as she walked in and at first, she either didn't notice or she didn't give it any attention but after a while I cought her stealing glances, with her thinking I was asleep. And I can swear that from time to time, I cought her briefly touching herself between her legs when she was looking at me. Luckily for me, I am pretty gifted in the male part of my body, with an 8in cock, thick for a full handfull so I knew that this will get her attention. And it did.
So this went on for about a year and a half, just us teasing each other, playing a game we didn't even know if the other one was participating in. It was all very edgy and it was building up quite a bit of sexual tension. At least in me. And that made me do things I never imagined I could do. I would spy on her when she was showering, and I will never forget the feeling of seeing her naked breasts for the first time. It was as if I met god. Probably even better, as I was still a virgin at that time. I would also randomly just smack her ass lightly, when she was laying on her belly, watching TV. And even though we didn't have the best of relationships, she never seemed pissed at me for doing that, so I tried to escalate things. Like grabbing her ass lightly after a smack, tickling her, undoing her bra or even her bikinis when we were at the beach, because even though the divorce of our parents took a dump on our financial situation, we still had a family house on the coast and we spent a lot of time there. And that gave me a lot of silly chances to be a stupid little pervy brother. We had a lot of friends there and I was a part of them and we played a lot of games in the water so I would grab her boobies or her ass ever so often under the pretence of a hand slip. And you can imagine the effect this had on me, with my dick raging under my swimming trunks... Luckily for me, I trained swimming, also did a couple of championships so to calm myself down I always had the perfect excuse. I would just go swim before I went out.
After that summer a few things have changed. Let's start with my sister. She started sleeping topless and whenever I woke up before her, she always made sure her blanket was under her breasts, showing them clearly to me. And her nipples are just perfect, they made my mouth water. Firm and upright even without beeing fully erect and small areolas, maybe 2 fingers wide. Just P E R F E C T in my eyes. She also left her underwear and bra drawer open, where as before she never left it open, and that was very inviting for me as you can imagine. When our mother was not home she sometimes even forgot to fully close the door to the bathroom when she was taking a shower. It didn't click immediately with me, but after a while of that it did. What if she wanted it too? And to be fair, for my part, fucking her was always my fantasy but I just showed it under the rug, I never thought it could happend because like I said, we haven't had the best of relationship. And after it clicked in my mind that maybe she want me as well, I started to notice that her behaviour changed. Quite a bit. She was polite, she seemed like she actually cared for me, for what's happening in my life and she has generally become a nice person. Which I liked because it allowed me to spend more time with her and catch a few more glimpses. What really surprised me was when we were watching a movie one evening. We were home alone and she actually let me decide what we'll watch. So I picked the movie Crank, as I knew it had a bit of sexual scenes in it. We were home alone and it was a chilly evening so she put a blanket over her but she left her breasts out and she was not wearing a bra so her shirt showed quite a bit of cleveage and I was positive that if I played it right and moved just a bit higher during the movie, I could get a clean view of her perfect nipples. And as I was focusing on her cleveage and shifting my body without her realizing, I failed to notice that her hands went under the blanket, and then it hit me. Just when I was about to see her nipples I saw something move in her crotch area. I didn't know what it was at first but then it moved again. And again. And then I could clearly see the outline of a circular motion of her hand and fingers in her crotch area, which made me immediately hard. Was she actually masturbating? I was gobsmacked to say the least. I just sat there, completely frozen, not knowing what to do except for one thing. Don't let her notice me watching, so she would continue. And after a while a recognized a smell in the air. It smelled good, almost the same as her panties, but even better, fresher and that was such a turn on that I almost lost my composure and jumped her right then and there. Which as I later found out, wouldn't actually be that bad.
And the situation that changed with me was that I found myself a girlfriend and I found myself a way to make money with Bitcoin. I didn't became a millionaire, but it for an 18 year old dude, it was a cool way to make money. Luckily for me, my mom worked long hours so i could sneak my girl in our appartment when she was not home and soon we started having sex. A lot of it. And when my sister cought us for the first time, I could see in her eyes that she was pissed and I could see jealousy, which was a shock for me. And when I saw the look of jealousy in her eyes it all starteg falling in to place and for the first time really, I knew she wanted me as well. But I played it well and cool and I didn't react to it immediately. I knew that having a girl was making her jealous so I knew that maybe this could be my ticket to getting in her panties. But it wasn't.
It was fun wathing my girl and my sister interact with each other and it was nice knowing that my sister was jealous. And then one day she cought us fucking, and I saw her looking throught the small opening in the door, I even made eye contact with her and I smiled at her while my girlf was riding me. That was such a thrill for me, it made me cum immediately and it even shocked my girl, as she wasn't protected and I just came inside her, and I'm a big cummer, 12 spurts of thick cum deep in her unprotected pussy. My girl was pissed, I was very excited and even more horny then before sex and my sister dissapeared. My sister came home a couple of minutes after my girl had left and I was rolling a big celebratory joint for myself. Espella had quite a fit of anger, she started telling me off, how she never wants to see her here again and how she never wants to see us fucking again. I just listened, didn't say anything back as I was smiling on the inside. Instead of saying anything back and arguig I just lit up my joint and without even knowing the she smoked, I offered it to her. Her reaction was amazing, her eyes lit up and she just took it from my hand and did a few very big puffs, inhaling it all and she started coughing very hard. I just smiled at her as she passed the joint back to me and she asked how could I smoke something that strong. I just smiled back at her and said that I can do a lot of things she don't know about. This maybe cought her by surprise because she just walked out of our room and she went to take shower while I smoked the joint. She went to sleep after that and so did I.
For the next couple of months our relationship went cold again, which was a bummer for me. I thought I lost my chance of fucking her and that hurt. I could only watch her getting undressed when she came home late at night and she thought I was sleeping. But then, one morning she woke up an hour later after me. Mom was already working so we were alone and she quietly said good morning, and I said good morning back. She looked me in the eyes as she stood up from the bed and I just watched her, still laying in my bed sleepy. I was doing my thing with Bitcoin and with various other cryptocurrencies that started popping up in that time while she had her own thing of making money, we just lived with our mother as it was cheapest and we did pay her a fair ammount in rent.
"I'm too lazy to work today." She quietly said when she came from the bathroom.
"Yeah, I know what you mean, I think I'm just gonna watch movies all day too." I answered, looking outside at a cold, rainy january day.
"Can I watch a movie with you?" She asked with a little bit of excitement in her voice.
"Sure, you have anything in mind?"
"Some comedy would be nice."
"How about some Adam Sandler movie?" I asked.
"Yes! That's perfect for today." She said and started walking towards my bed.
